2007
DOI: 10.1016/j.jinorgbio.2006.09.031
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Observation of terahertz vibrations in Pyrococcus furiosus rubredoxin via impulsive coherent vibrational spectroscopy and nuclear resonance vibrational spectroscopy – interpretation by molecular mechanics

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Cited by 17 publications
(22 citation statements)
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“…By fitting the DT/T data with an exponential decay plus an offset, we found that the population of the electronic excited state decays with a time constant of roughly 200 fs. This time constant is similar to the 230-300 fs values recently observed in rubredoxin [27] and in a [2Fe-2S] ferredoxin, [31] suggesting that rapid nonradiative coupling between excited and ground states is a general characteristic of Fe-S chromophores.…”
supporting
confidence: 86%
See 1 more Smart Citation
“…By fitting the DT/T data with an exponential decay plus an offset, we found that the population of the electronic excited state decays with a time constant of roughly 200 fs. This time constant is similar to the 230-300 fs values recently observed in rubredoxin [27] and in a [2Fe-2S] ferredoxin, [31] suggesting that rapid nonradiative coupling between excited and ground states is a general characteristic of Fe-S chromophores.…”
supporting
confidence: 86%
“…To date, ICVS has been applied to the study of several biochemical systems, including heme proteins, [17][18][19] green fluorescent protein, [20] blue copper proteins such as azurin, [21] plastocyanin, [22][23][24][25] and umecyanin, [26] and the Fe(Cys) 4 site in the electrontransfer protein rubredoxin. [27] In our ICVS experiments, a benzenethiolate-treated FeMoco solution was pumped by 15 fs pulses centered at 450 nm, and probed by sub-10 fs pulses with a broadband spectrum spanning the 500-700 nm range. [28,29] Figure 1 a shows the steady-state absorption spectrum for this FeMoco solution, together with the spectra of the pump and probe pulses.…”
mentioning
confidence: 99%
“…By analogy with rubredoxin, below 100 cm −1 there will also be features involving motion of the Fe site with larger regions of protein [45].…”
Section: Hmd Nrvs Spectramentioning
confidence: 99%
“…Techniques to access this energy range include neutron scattering, Raman/Brillouin scattering, Mössbauer scattering and far infrared (FIR) or THz spectroscopy. Mössbauer scattering can have limited application, because it requires a Mössbauer active isotope, usually 57 Fe, and reports on those motions that include the motion of this atom (Achterhold et al 2002;Tan et al 2007;Xiao et al 2005). Recently, there have been reports of global correlated motion measurements using inelastic scattering techniques (Biehl et al 2008;Liu et al 2008;Rheinstadter et al 2009).…”
Section: Challenges To Measuring Long-range Vibrationsmentioning
confidence: 99%